Growing community of inventors

Tokyo, Japan

Keiichiro Ogawa

Average Co-Inventor Count = 8.00

ph-index = 1

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 1

Keiichiro Ogawa ↔ Makoto Kaji (1 patent)Keiichiro Ogawa ↔ Atsushi Kakuta (1 patent)Keiichiro Ogawa ↔ Hiroyuki Kagawa (1 patent)Keiichiro Ogawa ↔ Hideyuki Nakayama (1 patent)Keiichiro Ogawa ↔ Kikujiro Ishii (1 patent)Keiichiro Ogawa ↔ Masaichi Sagawa (1 patent)Keiichiro Ogawa ↔ Chie Odoi (1 patent)Keiichiro OgawaKeiichiro Ogawa (1 patent)Makoto KajiMakoto Kaji (34 patents)Atsushi KakutaAtsushi Kakuta (25 patents)Hiroyuki KagawaHiroyuki Kagawa (19 patents)Hideyuki NakayamaHideyuki Nakayama (1 patent)Kikujiro IshiiKikujiro Ishii (1 patent)Masaichi SagawaMasaichi Sagawa (1 patent)Chie OdoiChie Odoi (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Hitachi Chemical Company, Ltd. (1 from 1,641 patents)


1 patent:

1. 5467421 - Nonlinear optical material and devices utilizing said material

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12/8/2025
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